单项选择题
A.center of gravity B.center of buoyancy C.center of flotation D.centroid of the underwater volume
A ship is inclined at an angle of loll. In the absence ...
单项选择题A ship is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is（）.
A.positive B.negative C.zero D.vertical
A partially full tank causes a virtual rise in the heig...
单项选择题A partially full tank causes a virtual rise in the height of the（）.
A.metacenter B.center of buoyancy C.center of flotation D.center of gravity
A neutral equilibrium position for a vessel means that ...
单项选择题A neutral equilibrium position for a vessel means that the metacenter is（）.
A.lower than the keel B.at the same height as the center of gravity C.exactly at midships D.at the center of the waterplane area
